Finding the Fourth Proportional to 472,393,455.30, 708,590,182.95 and 422,650,577.70
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Solution
The fourth proportional to 472,393,455.30, 708,590,182.95 and 422,650,577.70 is: 633,975,866.55
Step by Step Solution
- Step 1: Write the proportion equation
472,393,455.30 : 708,590,182.95 = 422,650,577.70 : x - Step 2: Convert to fraction form
472,393,455.30/708,590,182.95 = 422,650,577.70/x - Step 3: Cross multiply
472,393,455.30x = 708,590,182.95 × 422,650,577.70 - Step 4: Simplify right side
472,393,455.30x = 299,486,050,176,366,208 - Step 5: Solve for x
x = 299,486,050,176,366,208/472,393,455.30 - Step 6: Final answer
x = 633,975,866.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.